       
        body {
        margin: 0;
        padding: 0;
        font-size: 100%;
        color: black;
        background: #ccc;
        
    }
    
    form {
        width: auto;
        height: auto;
        text-align: justify;
        background: #ccc;
        float: left;
       
    }
    
    fieldset {
        width: auto;
        height: auto;
        background-color: #ccc;
        border-color: black; 
    }
    
    legend {
        font-family: impact;
        font-size: 16px;
        color: darkblue;
    }
    
    button{
        width: 10px;
        height: 5px;
    }
    
     p.imp {
        font-family: impact;
        font-size: 30px;
        color: darkblue;
    }
    
    p.grafo_heatmap{
        font-family: impact;
        font-size: 24px;
        color: darkblue;
    }
    
    p.desenha_grafo{
        font-family: impact;
        font-size: 20px;
        color: darkblue;
    }
    
    p.mostra_heatmap{
        font-family: impact;
        font-size: 20px;
        color: darkblue;
    }
    
    canvas{
        width: 100%;
        height: 100%;
        background-color: white;
        border-width: 1px 1px 1px;
    }
    
    .area_heatmap{
        width: 100%;
        height: 100%;
        background-color: white;
    }  
    
    #menu {
        float: left;
        width: 100%;
    }
    
    #menu ul {
        padding: 0px;
        margin: 0px;
        background-color: #EDEDED;
        list-style: none;
        border-width: 1px 1px 1px;
    }
    
    #menu ul li {
        display: inline;
    }
    
    #menu ul li a {
        padding: 2px 10px;
        display: inline-block;
        
        background-color: #EDEDED;
        color: #333;
        text-decoration: none;
        border-bottom: 3px solid #EDEDED;
    }
    
    #menu ul li a:hover {
	background-color:#D6D6D6;
    }
   